LLM WORLD

OpenAI

27 tracked releases · 3 open weights · median 28 days between releases

At a glance

Releases tracked27
FamiliesGPT · GPT-Image · GPT-Live · GPT-OSS · Sora · Whisper · o-series
First trackedSeptember 21, 2022 — Whisper
LatestSeptember 29, 2026 — GPT-6.1 Sol
Median gap28 days · slower than the 21-day median across tracked labs
Weights3 of 27 open (11%)
Record quality16 of 27 verified · how this is judged

Release cadence

One tile per tracked release, placed in the month it shipped; the year links through to that year's timeline. Tracked releases only — a quiet year here may mean this dataset is thin for that year rather than that the lab was quiet.

  1. 2022
    1. Whisper, OpenAI, September 21, 2022
    1
  2. 2023
    1. GPT-4, OpenAI, March 14, 2023
    1
  3. 2024
    1. GPT-4o, OpenAI, May 13, 2024
    2. o1, OpenAI, September 12, 2024
    2
  4. 2025
    1. GPT-4.5, OpenAI, February 27, 2025
    2. gpt-oss-120b, OpenAI, August 5, 2025gpt-oss-20b, OpenAI, August 5, 2025GPT-5, OpenAI, August 7, 2025
    3. Sora 2, OpenAI, September 30, 2025
    4. GPT-5.1, OpenAI, November 12, 2025
    5. GPT-5.2, OpenAI, December 11, 2025
    7
  5. 2026
    1. GPT-5.3-Codex, OpenAI, February 5, 2026
    2. GPT-5.4, OpenAI, March 5, 2026
    3. GPT-5.5, OpenAI, April 23, 2026
    4. GPT-5.6 Sol, OpenAI, July 9, 2026GPT-5.6 Luna, OpenAI, July 9, 2026GPT-5.6 Terra, OpenAI, July 9, 2026
    5. GPT-5.6-Cyber, OpenAI, August 10, 2026
    6. GPT-6 Astra, OpenAI, September 3, 2026ChatGPT Images 2.5, OpenAI, September 8, 2026GPT-Image-2.5 Flare, OpenAI, September 8, 2026GPT-Image-2.5 Sunburst, OpenAI, September 8, 2026GPT-Rosalind, OpenAI, September 8, 2026GPT-Live-1, OpenAI, September 10, 2026GPT-6 Sol, OpenAI, September 22, 2026GPT-6 Luna, OpenAI, September 22, 2026GPT-6.1 Sol, OpenAI, September 29, 2026
    16

Context window over time

Releases with a disclosed context window — 8 of 27 not shown.

GPT-4 · 2023 8K tokens
GPT-4o · 2024 128K tokens
o1 · 2024 200K tokens
GPT-4.5 · 2025 128K tokens
gpt-oss-120b · 2025 131K tokens
gpt-oss-20b · 2025 131K tokens
GPT-5 · 2025 400K tokens
GPT-5.1 · 2025 400K tokens
GPT-5.2 · 2025 400K tokens
GPT-5.3-Codex · 2026 400K tokens
GPT-5.4 · 2026 1.05M tokens
GPT-5.5 · 2026 1.05M tokens
GPT-5.6 Sol · 2026 1.05M tokens
GPT-5.6 Luna · 2026 1.05M tokens
GPT-5.6 Terra · 2026 1.05M tokens
GPT-5.6-Cyber · 2026 400K tokens
GPT-6 Astra · 2026 1.05M tokens
GPT-6 Luna · 2026 1.05M tokens
GPT-6.1 Sol · 2026 1.05M tokens

Evidenced capabilities

How often each capability is cited across this lab's releases. Absence means not evidenced, never absent — see data quality.

reasoning 16
function calling 11
structured output 8
vision 7
agentic 7
coding 4
audio 2
tool use 2
multilingual 1

Releases

  1. GPT-6.1 SolGPTText in and outImage inputSeptember 29, 2026
  2. GPT-6 SolGPTText in and outSeptember 22, 2026
  3. GPT-6 LunaGPTText in and outImage inputSeptember 22, 2026
  4. GPT-Live-1GPT-LiveAudio in and outText in and outSeptember 10, 2026
  5. ChatGPT Images 2.5GPT-ImageSeptember 8, 2026
  6. GPT-Image-2.5 FlareGPT-ImageText inputImage in and outSeptember 8, 2026
  7. GPT-Image-2.5 SunburstGPT-ImageText inputImage in and outSeptember 8, 2026
  8. GPT-RosalindGPTText in and outSeptember 8, 2026
  9. GPT-6 AstraGPTText in and outImage inputSeptember 3, 2026
  10. GPT-5.6-CyberGPTText in and outImage inputAugust 10, 2026
  11. GPT-5.6 SolGPTText in and outImage inputJuly 9, 2026
  12. GPT-5.6 LunaGPTText in and outImage inputJuly 9, 2026
  13. GPT-5.6 TerraGPTText in and outImage inputJuly 9, 2026
  14. GPT-5.5GPTText in and outImage inputApril 23, 2026
  15. GPT-5.4GPTText in and outImage inputMarch 5, 2026
  16. GPT-5.3-CodexGPTText in and outImage inputFebruary 5, 2026
  17. GPT-5.2GPTText in and outImage inputDecember 11, 2025
  18. GPT-5.1GPTText in and outImage inputNovember 12, 2025
  19. Sora 2SoraSeptember 30, 2025
  20. GPT-5GPTText in and outImage inputAugust 7, 2025
  21. gpt-oss-120bGPT-OSSText in and outAugust 5, 2025
  22. gpt-oss-20bGPT-OSSText in and outAugust 5, 2025
  23. GPT-4.5GPTText in and outImage inputFebruary 27, 2025
  24. o1o-seriesText in and outImage inputSeptember 12, 2024
  25. GPT-4oGPTText in and outImage in and outAudio in and outMay 13, 2024
  26. GPT-4GPTText in and outImage inputMarch 14, 2023
  27. WhisperWhisperSeptember 21, 2022

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